chore(deps): update dependency eslint-config-next to v16

Author: renovate[bot]

apps/site/package.json

@@ -31,7 +31,7 @@
     "@types/react": "^19.2.7",
     "@types/react-dom": "^19.2.3",
     "eslint": "^9.19.0",
-    "eslint-config-next": "15.5.2",
+    "eslint-config-next": "16.1.0",
     "mongoose": "^8.18.0",
     "postcss": "^8.5.3",
     "tailwindcss": "^4.1.17",